Migrate to cargo_embargo. am: f516a00dd9 am: 15e3120029

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/argh_shared/+/2799193

Change-Id: Ie25e51c6be9ea4672f5a1db1f9a85dc9ea583d32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>